Model for a Torsional-Mode Ultrasonic Transducer for an Acousto-Optic In-Fiber Isolator

Figure 5

Displacement 𝑢(𝑟) (a) and (d), strain 𝜀_𝑟𝜃(𝑟) (b) and (e), and strain 𝜀_𝑧𝜃(𝑟) (c) and (f) are shown at the two ends of the transducer. This is for the same conditions as in Figure 4, except that the phase of the reflected 𝑠=1 mode is 180^∘.

(a)

(b)

(c)

(d)

(e)

(f)